A power adapter rating life test method
A power adapter and life testing technology, applied in the field of automation, can solve the problems of labor-consuming, unable to detect components of power adapter, unable to determine the theoretical life of core components, etc., to achieve the effect of easy quantification and saving labor costs
Active Publication Date: 2020-08-21
TAIHUA WISDOM IND GRP CO LTD
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Problems solved by technology
[0004] 1. The whole test process needs someone to be on duty, which takes up manpower and takes a long time to simulate aging
[0005] 2. The test project cannot effectively detect the components of the power adapter, and cannot determine the theoretical life of the core components. The core components of the power adapter are mainly switching transformers, secondary rectifiers, inductor coils, power adapter fuses, filter capacitors, chips , rectifier bridge, filter capacitor, varistor, when only the aging experiment can confirm that the above-mentioned devices are effective within the scope of the aging experiment, but the theoretical life of the core device cannot be determined
[0006] 3. The simple aging test is not rigorous and scientific. The theoretical life of a power adapter is at least 5000h. It is impossible to carry out a long-term test of 5000h in the aging test. Generally, it is 7*24h. There is a certain degree of probability that unqualified products will pass. test
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[0052] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0053] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0054] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0055] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention discloses a method for testing the rated life of a power adapter. The method comprises: obtaining a power adapter, making the power adapter in a fully loaded state; performing a high and low temperature cycle test on the power adapter; , to detect whether the power adapter is invalid; if not, conduct an electromagnetic compatibility test on the power adapter; after the electromagnetic compatibility test, detect whether the power adapter is invalid; if not, conduct an average fault-free test on the power adapter Time test; after the first set time in the mean time between failure test, calculate the life of all electrolytic capacitors in the power adapter; the life of the electrolytic capacitor with the shortest life in all electrolytic capacitors as the rated power adapter life. Through the invention, the rated life of the power adapter can be effectively estimated.
Description
technical field [0001] The invention relates to the technical field of automation, and more particularly, to a method for testing the rated life of a power adapter. Background technique [0002] Power adapter, as a power supply conversion device for small portable electronic devices and electronic appliances, generally refers to a small component that converts the mains power that meets the location of use into a small component that meets the input voltage of electrical equipment. It is the core equipment of electronic products. Before the equipment leaves the factory In addition to the functional test of the power adapter, the reliability test of the power adapter is also required, and the theoretical life of the device is estimated. [0003] When the existing test method tests the reliability of the power adapter, the power adapter is subjected to a long-term uninterrupted operation simulation experiment, and the working state of the power adapter is checked by visually o...
Claims
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IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 郝敬全商钢风安涛于涛马述杰
Owner TAIHUA WISDOM IND GRP CO LTD